Their main concert hall is beautifully shaped in a way that you have great views on the stage from all seats. Prices are very reasonable and start at 800RB. Acoustically this hall claims to be top notch for classical music.
We went to the legendary "Incognito" funky jazz band, and even though they had an outstanding performance, the size of this hall was not quite right for that type of lively music. So just make sure you visit a classical music performance, because at the opera and classical concert we went the acoustics were perfect.